Springs - Extension

Springs -> Extension
OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Spring Rate Initial Tension (IT) Indicative
Image
OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
92.1
mm

(Equiv. 3.626 in.)
Wire Diameter (d)
1.22
mm

(Equiv. 0.048 in.)
Spring Rate
0.37
N/mm
Initial Tension (IT)
0.4
N
Extension Springs - 11.1x92.1x1.22 mm - Steel - Zinc
Material: Steel - Zinc   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1110-0921-12-M
Extension Springs - 11.1x92.1x1.22 mm Stainless Steel - Steel - Zinc Spring
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$8.77 AUD
$10.53 AUD $8.77 AUD
Each
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OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Indicative
Image
OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
92.1
mm

(Equiv. 3.626 in.)
Wire Diameter (d)
1.22
mm

(Equiv. 0.048 in.)
Extension Springs - 11.1x92.1x1.22 mm - Steel - Zinc
Material: Steel - Zinc    Spring Rate: 0.37 N/mm    Initial Tension (IT): 0.4 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1110-0921-12-M
Extension Springs - 11.1x92.1x1.22 mm Stainless Steel - Steel - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$8.77 AUD
$10.53 AUD $8.77 AUD
Each
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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
88.9
mm

(Equiv. 3.5 in.)
Wire Diameter (d)
1.19
mm

(Equiv. 0.047 in.)
Spring Rate
0.34
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 11.1x88.9x1.19 mm - Hard Drawn - Zinc
Material: Hard Drawn - Zinc   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1110-0889-12-M
Extension Springs - 11.1x88.9x1.19 mm Stainless Steel - Hard Drawn - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$8.41 AUD
$10.09 AUD $8.41 AUD
Each
Quantity Required

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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
88.9
mm

(Equiv. 3.5 in.)
Wire Diameter (d)
1.19
mm

(Equiv. 0.047 in.)
Extension Springs - 11.1x88.9x1.19 mm - Hard Drawn - Zinc
Material: Hard Drawn - Zinc    Spring Rate: 0.34 N/mm    Initial Tension (IT): 0.3 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1110-0889-12-M
Extension Springs - 11.1x88.9x1.19 mm Stainless Steel - Hard Drawn - Zinc Spring
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$8.41 AUD
$10.09 AUD $8.41 AUD
Each
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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
152.4
mm

(Equiv. 6 in.)
Wire Diameter (d)
1.58
mm

(Equiv. 0.062 in.)
Spring Rate
0.82
N/mm
Initial Tension (IT)
0.8
N
Extension Springs - 11.1x152.4x1.58 mm - Hard Drawn - Zinc
Material: Hard Drawn - Zinc   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1110-1524-16-M
Extension Springs - 11.1x152.4x1.58 mm Stainless Steel - Hard Drawn - Zinc Spring
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$11.95 AUD
$14.35 AUD $11.95 AUD
Each
Quantity Required

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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
152.4
mm

(Equiv. 6 in.)
Wire Diameter (d)
1.58
mm

(Equiv. 0.062 in.)
Extension Springs - 11.1x152.4x1.58 mm - Hard Drawn - Zinc
Material: Hard Drawn - Zinc    Spring Rate: 0.82 N/mm    Initial Tension (IT): 0.8 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1110-1524-16-M
Extension Springs - 11.1x152.4x1.58 mm Stainless Steel - Hard Drawn - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$11.95 AUD
$14.35 AUD $11.95 AUD
Each
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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
95.9
mm

(Equiv. 3.776 in.)
Wire Diameter (d)
1.30
mm

(Equiv. 0.051 in.)
Initial Tension (IT)
0.4
N
Extension Springs - 11.1x95.9x1.3 mm - Steel
Material: Steel   
Category: Springs - Extension - Music Wire
Part Number: ES-1111-0959-13-M
Extension Springs - 11.1x95.9x1.3 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$7.32 AUD
$13.86 AUD $7.32 AUD
Each
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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
95.9
mm

(Equiv. 3.776 in.)
Wire Diameter (d)
1.30
mm

(Equiv. 0.051 in.)
Extension Springs - 11.1x95.9x1.3 mm - Steel
Material: Steel    Initial Tension (IT): 0.4 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1111-0959-13-M
Extension Springs - 11.1x95.9x1.3 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$7.32 AUD
$13.86 AUD $7.32 AUD
Each
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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
114.3
mm

(Equiv. 4.5 in.)
Wire Diameter (d)
0.71
mm

(Equiv. 0.028 in.)
Spring Rate
0.02
N/mm
Initial Tension (IT)
0.0
N
Extension Springs - 11.1x114.3x0.71 mm - Steel - Zinc
Material: Steel - Zinc   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1110-1143-07-M
Extension Springs - 11.1x114.3x0.71 mm Stainless Steel - Steel - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$13.50 AUD
$13.50 AUD
Each
Quantity Required

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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
114.3
mm

(Equiv. 4.5 in.)
Wire Diameter (d)
0.71
mm

(Equiv. 0.028 in.)
Extension Springs - 11.1x114.3x0.71 mm - Steel - Zinc
Material: Steel - Zinc    Spring Rate: 0.02 N/mm    Initial Tension (IT): 0.0 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1110-1143-07-M
Extension Springs - 11.1x114.3x0.71 mm Stainless Steel - Steel - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$13.50 AUD
$13.50 AUD
Each
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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
279.4
mm

(Equiv. 11 in.)
Wire Diameter (d)
1.19
mm

(Equiv. 0.047 in.)
Spring Rate
0.10
N/mm
Initial Tension (IT)
0.1
N
Extension Springs - 11.1x279.4x1.19 mm - Steel
Material: Steel   
Category: Springs - Extension - Music Wire
Part Number: ES-1110-2794-12-M (500 Pcs)
Extension Springs - 11.1x279.4x1.19 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$4,996.95 AUD
$4,996.95 AUD
Per 500
Quantity Required

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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
279.4
mm

(Equiv. 11 in.)
Wire Diameter (d)
1.19
mm

(Equiv. 0.047 in.)
Extension Springs - 11.1x279.4x1.19 mm - Steel
Material: Steel    Spring Rate: 0.10 N/mm    Initial Tension (IT): 0.1 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1110-2794-12-M (500 Pcs)
Extension Springs - 11.1x279.4x1.19 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$4,996.95 AUD
$4,996.95 AUD
Per 500
Quantity Required

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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
133.3
mm

(Equiv. 5.248 in.)
Wire Diameter (d)
1.60
mm

(Equiv. 0.063 in.)
Initial Tension (IT)
1.0
N
Extension Springs - 11.1x133.3x1.6 mm - Steel
Material: Steel   
Category: Springs - Extension - Music Wire
Part Number: ES-1111-1333-16-M
Extension Springs - 11.1x133.3x1.6 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$11.50 AUD
$22.28 AUD $11.50 AUD
Each
Quantity Required

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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
133.3
mm

(Equiv. 5.248 in.)
Wire Diameter (d)
1.60
mm

(Equiv. 0.063 in.)
Extension Springs - 11.1x133.3x1.6 mm - Steel
Material: Steel    Initial Tension (IT): 1.0 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1111-1333-16-M
Extension Springs - 11.1x133.3x1.6 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$11.50 AUD
$22.28 AUD $11.50 AUD
Each
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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
170.6
mm

(Equiv. 6.717 in.)
Wire Diameter (d)
2.00
mm

(Equiv. 0.079 in.)
Initial Tension (IT)
2.9
N
Extension Springs - 11.1x170.6x2 mm - Steel
Material: Steel   
Category: Springs - Extension - Music Wire
Part Number: ES-1111-1706-20-M
Extension Springs - 11.1x170.6x2 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$14.05 AUD
$27.50 AUD $14.05 AUD
Each
Quantity Required

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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
170.6
mm

(Equiv. 6.717 in.)
Wire Diameter (d)
2.00
mm

(Equiv. 0.079 in.)
Extension Springs - 11.1x170.6x2 mm - Steel
Material: Steel    Initial Tension (IT): 2.9 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1111-1706-20-M
Extension Springs - 11.1x170.6x2 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$14.05 AUD
$27.50 AUD $14.05 AUD
Each
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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
171.8
mm

(Equiv. 6.764 in.)
Wire Diameter (d)
1.40
mm

(Equiv. 0.055 in.)
Initial Tension (IT)
0.4
N
Extension Springs - 11.1x171.8x1.4 mm - Steel
Material: Steel   
Category: Springs - Extension - Music Wire
Part Number: ES-1111-1718-14-M
Extension Springs - 11.1x171.8x1.4 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$11.50 AUD
$22.21 AUD $11.50 AUD
Each
Quantity Required

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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
171.8
mm

(Equiv. 6.764 in.)
Wire Diameter (d)
1.40
mm

(Equiv. 0.055 in.)
Extension Springs - 11.1x171.8x1.4 mm - Steel
Material: Steel    Initial Tension (IT): 0.4 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1111-1718-14-M
Extension Springs - 11.1x171.8x1.4 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$11.50 AUD
$22.21 AUD $11.50 AUD
Each
Quantity Required

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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
172.8
mm

(Equiv. 6.803 in.)
Wire Diameter (d)
0.90
mm

(Equiv. 0.035 in.)
Initial Tension (IT)
0.0
N
Extension Springs - 11.1x172.8x0.9 mm - Steel
Material: Steel   
Category: Springs - Extension - Music Wire
Part Number: ES-1111-1728-09-M
Extension Springs - 11.1x172.8x0.9 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$7.23 AUD
$13.72 AUD $7.23 AUD
Each
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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
172.8
mm

(Equiv. 6.803 in.)
Wire Diameter (d)
0.90
mm

(Equiv. 0.035 in.)
Extension Springs - 11.1x172.8x0.9 mm - Steel
Material: Steel    Initial Tension (IT): 0.0 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1111-1728-09-M
Extension Springs - 11.1x172.8x0.9 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$7.23 AUD
$13.72 AUD $7.23 AUD
Each
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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
279.4
mm

(Equiv. 11 in.)
Wire Diameter (d)
1.58
mm

(Equiv. 0.062 in.)
Spring Rate
0.44
N/mm
Initial Tension (IT)
0.4
N
Extension Springs - 11.1x279.4x1.58 mm - Steel
Material: Steel   
Category: Springs - Extension - Music Wire
Part Number: ES-1110-2794-16-M (200 Pcs)
Extension Springs - 11.1x279.4x1.58 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$3,830.77 AUD
$8,110.08 AUD $3,830.77 AUD
Per 200
Quantity Required

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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
279.4
mm

(Equiv. 11 in.)
Wire Diameter (d)
1.58
mm

(Equiv. 0.062 in.)
Extension Springs - 11.1x279.4x1.58 mm - Steel
Material: Steel    Spring Rate: 0.44 N/mm    Initial Tension (IT): 0.4 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1110-2794-16-M (200 Pcs)
Extension Springs - 11.1x279.4x1.58 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$3,830.77 AUD
$8,110.08 AUD $3,830.77 AUD
Per 200
Quantity Required

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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
795.3
mm

(Equiv. 31.311 in.)
Wire Diameter (d)
1.19
mm

(Equiv. 0.047 in.)
Spring Rate
0.31
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 11.1x795.3x1.19 mm - Steel - Zinc
Material: Steel - Zinc   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1110-7953-12-M
Extension Springs - 11.1x795.3x1.19 mm Stainless Steel - Steel - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$12.59 AUD
$15.11 AUD $12.59 AUD
Each
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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
795.3
mm

(Equiv. 31.311 in.)
Wire Diameter (d)
1.19
mm

(Equiv. 0.047 in.)
Extension Springs - 11.1x795.3x1.19 mm - Steel - Zinc
Material: Steel - Zinc    Spring Rate: 0.31 N/mm    Initial Tension (IT): 0.3 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1110-7953-12-M
Extension Springs - 11.1x795.3x1.19 mm Stainless Steel - Steel - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$12.59 AUD
$15.11 AUD $12.59 AUD
Each
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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
541.3
mm

(Equiv. 21.311 in.)
Wire Diameter (d)
1.19
mm

(Equiv. 0.047 in.)
Spring Rate
0.46
N/mm
Initial Tension (IT)
0.5
N
Extension Springs - 11.1x541.3x1.19 mm - Steel - Zinc
Material: Steel - Zinc   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1110-5413-12-M
Extension Springs - 11.1x541.3x1.19 mm Stainless Steel - Steel - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$6.95 AUD
$8.35 AUD $6.95 AUD
Each
Quantity Required

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OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Overall Length (L0)
541.3
mm

(Equiv. 21.311 in.)
Wire Diameter (d)
1.19
mm

(Equiv. 0.047 in.)
Extension Springs - 11.1x541.3x1.19 mm - Steel - Zinc
Material: Steel - Zinc    Spring Rate: 0.46 N/mm    Initial Tension (IT): 0.5 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1110-5413-12-M
Extension Springs - 11.1x541.3x1.19 mm Stainless Steel - Steel - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$6.95 AUD
$8.35 AUD $6.95 AUD
Each
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OD (D0)
11.13
mm

(Equiv. 0.438 in.)
Overall Length (L0)
508.0
mm

(Equiv. 20 in.)
Wire Diameter (d)
1.04
mm

(Equiv. 0.041 in.)
Spring Rate
4.03
N/mm
Initial Tension (IT)
4.0
N
Extension Springs - 11.13x508x1.04 mm - Stainless Steel
Material: Stainless Steel   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1113-5080-10-S2
Extension Springs - 11.13x508x1.04 mm - Stainless Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$54.32 AUD
$65.18 AUD $54.32 AUD
Each
Quantity Required

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OD (D0)
11.13
mm

(Equiv. 0.438 in.)
Overall Length (L0)
508.0
mm

(Equiv. 20 in.)
Wire Diameter (d)
1.04
mm

(Equiv. 0.041 in.)
Extension Springs - 11.13x508x1.04 mm - Stainless Steel
Material: Stainless Steel    Spring Rate: 4.03 N/mm    Initial Tension (IT): 4.0 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1113-5080-10-S2
Extension Springs - 11.13x508x1.04 mm - Stainless Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$54.32 AUD
$65.18 AUD $54.32 AUD
Each
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OD (D0)
11.13
mm

(Equiv. 0.438 in.)
Overall Length (L0)
508.0
mm

(Equiv. 20 in.)
Wire Diameter (d)
1.37
mm

(Equiv. 0.054 in.)
Spring Rate
1.75
N/mm
Initial Tension (IT)
1.8
N
Extension Springs - 11.13x508x1.37 mm - Stainless Steel
Material: Stainless Steel   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1113-5080-14-S2
Extension Springs - 11.13x508x1.37 mm - Stainless Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$58.41 AUD
$70.09 AUD $58.41 AUD
Each
Quantity Required

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OD (D0)
11.13
mm

(Equiv. 0.438 in.)
Overall Length (L0)
508.0
mm

(Equiv. 20 in.)
Wire Diameter (d)
1.37
mm

(Equiv. 0.054 in.)
Extension Springs - 11.13x508x1.37 mm - Stainless Steel
Material: Stainless Steel    Spring Rate: 1.75 N/mm    Initial Tension (IT): 1.8 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-1113-5080-14-S2
Extension Springs - 11.13x508x1.37 mm - Stainless Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
$58.41 AUD
$70.09 AUD $58.41 AUD
Each
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OD (D0)
12.00
mm

(Equiv. 0.472 in.)
Overall Length (L0)
40
mm

(Equiv. 1.575 in.)
Wire Diameter (d)
2.000
mm

(Equiv. 0.079 in.)
Max. Extension (L1)
46.60
mm
Spring Rate
13.04
N/mm
Initial Tension (IT)
34.3
N
Extension Springs - 12x40x2 mm - Steel
Material: Steel    Load at L1: 120.62 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1200-0400-20-M (100 Pcs)
Extension Springs - 12x40x2 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025
$151.68 AUD
$320.76 AUD $151.68 AUD
Per 100
Quantity Required

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OD (D0)
12.00
mm

(Equiv. 0.472 in.)
Overall Length (L0)
40
mm

(Equiv. 1.575 in.)
Wire Diameter (d)
2.000
mm

(Equiv. 0.079 in.)
Max. Extension (L1)
46.60
mm
Extension Springs - 12x40x2 mm - Steel
Material: Steel    Spring Rate: 13.04 N/mm    Initial Tension (IT): 34.3 N    Load at L1: 120.62 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1200-0400-20-M (100 Pcs)
Extension Springs - 12x40x2 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025
$151.68 AUD
$320.76 AUD $151.68 AUD
Per 100
Quantity Required

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OD (D0)
12.00
mm

(Equiv. 0.472 in.)
Overall Length (L0)
45
mm

(Equiv. 1.772 in.)
Wire Diameter (d)
2.000
mm

(Equiv. 0.079 in.)
Max. Extension (L1)
52.70
mm
Spring Rate
11.18
N/mm
Initial Tension (IT)
34.3
N
Extension Springs - 12x45x2 mm - Steel
Material: Steel    Load at L1: 120.62 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1200-0450-20-M (100 Pcs)
Extension Springs - 12x45x2 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025
$160.86 AUD
$340.20 AUD $160.86 AUD
Per 100
Quantity Required

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OD (D0)
12.00
mm

(Equiv. 0.472 in.)
Overall Length (L0)
45
mm

(Equiv. 1.772 in.)
Wire Diameter (d)
2.000
mm

(Equiv. 0.079 in.)
Max. Extension (L1)
52.70
mm
Extension Springs - 12x45x2 mm - Steel
Material: Steel    Spring Rate: 11.18 N/mm    Initial Tension (IT): 34.3 N    Load at L1: 120.62 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1200-0450-20-M (100 Pcs)
Extension Springs - 12x45x2 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025
$160.86 AUD
$340.20 AUD $160.86 AUD
Per 100
Quantity Required

Backorder: Out of Stock.
OD (D0)
12.00
mm

(Equiv. 0.472 in.)
Overall Length (L0)
50
mm

(Equiv. 1.969 in.)
Wire Diameter (d)
2.000
mm

(Equiv. 0.079 in.)
Max. Extension (L1)
59.40
mm
Spring Rate
9.22
N/mm
Initial Tension (IT)
34.3
N
Extension Springs - 12x50x2 mm - Steel
Material: Steel    Load at L1: 120.62 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1200-0500-20-M (100 Pcs)
Extension Springs - 12x50x2 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025
$166.77 AUD
$352.80 AUD $166.77 AUD
Per 100
Quantity Required

Backorder: Out of Stock.
OD (D0)
12.00
mm

(Equiv. 0.472 in.)
Overall Length (L0)
50
mm

(Equiv. 1.969 in.)
Wire Diameter (d)
2.000
mm

(Equiv. 0.079 in.)
Max. Extension (L1)
59.40
mm
Extension Springs - 12x50x2 mm - Steel
Material: Steel    Spring Rate: 9.22 N/mm    Initial Tension (IT): 34.3 N    Load at L1: 120.62 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1200-0500-20-M (100 Pcs)
Extension Springs - 12x50x2 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025
$166.77 AUD
$352.80 AUD $166.77 AUD
Per 100
Quantity Required

Backorder: Out of Stock.
OD (D0)
12.00
mm

(Equiv. 0.472 in.)
Overall Length (L0)
60
mm

(Equiv. 2.362 in.)
Wire Diameter (d)
2.000
mm

(Equiv. 0.079 in.)
Max. Extension (L1)
72.10
mm
Spring Rate
7.16
N/mm
Initial Tension (IT)
34.3
N
Extension Springs - 12x60x2 mm - Steel
Material: Steel    Load at L1: 120.62 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1200-0600-20-M (5 Pcs)
Extension Springs - 12x60x2 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025
$9.32 AUD
$19.26 AUD $9.32 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
12.00
mm

(Equiv. 0.472 in.)
Overall Length (L0)
60
mm

(Equiv. 2.362 in.)
Wire Diameter (d)
2.000
mm

(Equiv. 0.079 in.)
Max. Extension (L1)
72.10
mm
Extension Springs - 12x60x2 mm - Steel
Material: Steel    Spring Rate: 7.16 N/mm    Initial Tension (IT): 34.3 N    Load at L1: 120.62 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1200-0600-20-M (5 Pcs)
Extension Springs - 12x60x2 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025
$9.32 AUD
$19.26 AUD $9.32 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
12.00
mm

(Equiv. 0.472 in.)
Overall Length (L0)
65
mm

(Equiv. 2.559 in.)
Wire Diameter (d)
2.000
mm

(Equiv. 0.079 in.)
Max. Extension (L1)
78.10
mm
Spring Rate
6.57
N/mm
Initial Tension (IT)
34.3
N
Extension Springs - 12x65x2 mm - Steel
Material: Steel    Load at L1: 120.62 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1200-0650-20-M (50 Pcs)
Extension Springs - 12x65x2 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025
$171.59 AUD
$171.59 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
OD (D0)
12.00
mm

(Equiv. 0.472 in.)
Overall Length (L0)
65
mm

(Equiv. 2.559 in.)
Wire Diameter (d)
2.000
mm

(Equiv. 0.079 in.)
Max. Extension (L1)
78.10
mm
Extension Springs - 12x65x2 mm - Steel
Material: Steel    Spring Rate: 6.57 N/mm    Initial Tension (IT): 34.3 N    Load at L1: 120.62 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1200-0650-20-M (50 Pcs)
Extension Springs - 12x65x2 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025
$171.59 AUD
$171.59 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Overall Length (L0)
31.8
mm

(Equiv. 1.252 in.)
Wire Diameter (d)
0.89
mm

(Equiv. 0.035 in.)
Max. Extension (L1)
67.310
mm
Spring Rate
0.368
N/mm
Initial Tension (IT)
1.8
N
Extension Springs - 12.7x31.8x0.89 mm - Steel
Material: Steel    Load at L1: 14.110 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1270-0318-09-M
Extension Springs - 12.7x31.8x0.89 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$7.05 AUD
$13.36 AUD $7.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Overall Length (L0)
31.8
mm

(Equiv. 1.252 in.)
Wire Diameter (d)
0.89
mm

(Equiv. 0.035 in.)
Max. Extension (L1)
67.310
mm
Extension Springs - 12.7x31.8x0.89 mm - Steel
Material: Steel    Spring Rate: 0.368 N/mm    Initial Tension (IT): 1.8 N    Load at L1: 14.110 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1270-0318-09-M
Extension Springs - 12.7x31.8x0.89 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$7.05 AUD
$13.36 AUD $7.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Overall Length (L0)
31.8
mm

(Equiv. 1.252 in.)
Wire Diameter (d)
0.99
mm

(Equiv. 0.039 in.)
Max. Extension (L1)
59.440
mm
Spring Rate
0.841
N/mm
Initial Tension (IT)
2.2
N
Extension Springs - 12.7x31.8x0.99 mm - Steel
Material: Steel    Load at L1: 25.800 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1270-0318-10-M
Extension Springs - 12.7x31.8x0.99 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$7.32 AUD
$13.82 AUD $7.32 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Overall Length (L0)
31.8
mm

(Equiv. 1.252 in.)
Wire Diameter (d)
0.99
mm

(Equiv. 0.039 in.)
Max. Extension (L1)
59.440
mm
Extension Springs - 12.7x31.8x0.99 mm - Steel
Material: Steel    Spring Rate: 0.841 N/mm    Initial Tension (IT): 2.2 N    Load at L1: 25.800 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1270-0318-10-M
Extension Springs - 12.7x31.8x0.99 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$7.32 AUD
$13.82 AUD $7.32 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Overall Length (L0)
31.8
mm

(Equiv. 1.252 in.)
Wire Diameter (d)
1.40
mm

(Equiv. 0.055 in.)
Max. Extension (L1)
44.450
mm
Spring Rate
4.270
N/mm
Initial Tension (IT)
5.3
N
Extension Springs - 12.7x31.8x1.4 mm - Steel
Material: Steel    Load at L1: 58.270 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1270-0318-14-M
Extension Springs - 12.7x31.8x1.4 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$7.86 AUD
$14.80 AUD $7.86 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Overall Length (L0)
31.8
mm

(Equiv. 1.252 in.)
Wire Diameter (d)
1.40
mm

(Equiv. 0.055 in.)
Max. Extension (L1)
44.450
mm
Extension Springs - 12.7x31.8x1.4 mm - Steel
Material: Steel    Spring Rate: 4.270 N/mm    Initial Tension (IT): 5.3 N    Load at L1: 58.270 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1270-0318-14-M
Extension Springs - 12.7x31.8x1.4 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$7.86 AUD
$14.80 AUD $7.86 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Overall Length (L0)
31.8
mm

(Equiv. 1.252 in.)
Wire Diameter (d)
1.25
mm

(Equiv. 0.049 in.)
Max. Extension (L1)
47.750
mm
Spring Rate
2.450
N/mm
Initial Tension (IT)
3.9
N
Extension Springs - 12.7x31.8x1.25 mm - Steel
Material: Steel    Load at L1: 43.370 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1270-0318-12-M
Extension Springs - 12.7x31.8x1.25 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$7.50 AUD
$14.26 AUD $7.50 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Overall Length (L0)
31.8
mm

(Equiv. 1.252 in.)
Wire Diameter (d)
1.25
mm

(Equiv. 0.049 in.)
Max. Extension (L1)
47.750
mm
Extension Springs - 12.7x31.8x1.25 mm - Steel
Material: Steel    Spring Rate: 2.450 N/mm    Initial Tension (IT): 3.9 N    Load at L1: 43.370 N   
Category: Springs - Extension - Music Wire
Part Number: ES-1270-0318-12-M
Extension Springs - 12.7x31.8x1.25 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
$7.50 AUD
$14.26 AUD $7.50 AUD
Each
Quantity Required

Backorder: Out of Stock.